bjoernager/rust
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pub use std::simd::StdFloat;

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Make available the remaining float intrinsics that require runtime support
from a platform's libm, and thus cannot be included in a no-deps libcore,
by exposing them through a sealed trait, `std::simd::StdFloat`.

We might use the trait approach a bit more in the future, or maybe not.
Ideally, this trait doesn't stick around, even if so.
If we don't need to intermesh it with std, it can be used as a crate,
but currently that is somewhat uncertain.
This commit is contained in:
Jubilee Young 2022-01-27 11:50:58 -08:00
parent cde7bdc678
commit e96159e9af
4 changed files with 57 additions and 14 deletions
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22
library/std/src/lib.rs
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@ -313,6 +313,7 @@
#![feature(panic_internals)]
#![feature(panic_unwind)]
#![feature(pin_static_ref)]
#![feature(platform_intrinsics)]
#![feature(portable_simd)]
#![feature(prelude_import)]
#![feature(ptr_as_uninit)]
@ -465,8 +466,6 @@ pub use core::pin;
pub use core::ptr;
#[stable(feature = "rust1", since = "1.0.0")]
pub use core::result;
#[unstable(feature = "portable_simd", issue = "86656")]
pub use core::simd;
#[unstable(feature = "async_stream", issue = "79024")]
pub use core::stream;
#[stable(feature = "i128", since = "1.26.0")]
@ -513,6 +512,25 @@ pub mod time;
#[unstable(feature = "once_cell", issue = "74465")]
pub mod lazy;
// Pull in `std_float` crate into libstd. The contents of
// `std_float` are in a different repository: rust-lang/portable-simd.
#[path = "../../portable-simd/crates/std_float/src/lib.rs"]
#[allow(missing_debug_implementations, dead_code, unsafe_op_in_unsafe_fn, unused_unsafe)]
#[allow(rustdoc::bare_urls)]
#[unstable(feature = "portable_simd", issue = "86656")]
#[cfg(not(all(miri, doctest)))] // Miri does not support all SIMD intrinsics
mod std_float;
#[cfg(not(all(miri, doctest)))] // Miri does not support all SIMD intrinsics
#[doc = include_str!("../../portable-simd/crates/core_simd/src/core_simd_docs.md")]
#[unstable(feature = "portable_simd", issue = "86656")]
pub mod simd {
#[doc(inline)]
pub use crate::std_float::StdFloat;
#[doc(inline)]
pub use core::simd::*;
}
#[stable(feature = "futures_api", since = "1.36.0")]
pub mod task {
//! Types and Traits for working with asynchronous tasks.